squirrelmail : Failed to install script : module php-pear does not exist

all our user use squirrelmail and this is broke on all domains :
when we select squirrelmail STABLE it doesnt install correct we get the error :
Found http://jaist.dl.sourceforge.net:80/sourceforge/squirrelmail/squirrelmail... in cache ..

Failed to install script : module php-pear does not exist

removed cache for new download - removed php-pear and reinstalled no sollutions also tried all options nothing works
this is since the last update because before it worked with sometimes a hanging install script

we use kernel
2.6.12-1.1381_FC3

Status: 
Closed (fixed)